books.google.com - Though biogeography may be simply defined--the study of the geographic distributions of organisms--the subject itself is extraordinarily complex, involving a range of scientific disciplines and a bewildering diversity of approaches. For convenience, biogeographers have recognized two research traditions:...https://books.google.com/books/about/Historical_Biogeography.html?id=KC7OJ1wTL0oC&utm_source=gb-gplus-shareHistorical Biogeography